Rated by Robert Harley of The Absolute Sound as one of the ten most significant amplifiers ever made, the Hafler DH-200 offers 100 watts of musical Mosfet output power while retaining the benefits of solid state imaging and bass reproduction. Have had this routinely serviced and inspected, cosmetically in great condition. Output Power Stereo Less than 0.02% THD at any power level up to 100 watts per channel, both channels driven continuously, from 20-20,000 Hz. Audio Input One stereo pair of 1/4" RCA jacks with individual potentiometers. 22 kΩ. 1.5 V RMS input for 100 watts into 8Ω.
Audio Output Connectors Standard 5-way binding posts on standard 3/4" centers. Total four pairs or 8 posts.
SMPTE Intermodulation Distortion < 0.005% from 1 - 100 watts into 8Ω.
THD at 100 WPC into 8Ω (typical) 1 kHz: 0.0015% 10 kHz: 0.005% 20 kHz: 0.012%
Frequency Response into 8Ω 10 - 40,000 Hz at 100 watts ±0.5 dB. 1 - 100,000 Hz at -3 dB at 1 watt.
Crosstalk (typical) 66 dB at 20 Hz. 66 dB at 1 kHz. 60 dB at 20 kHz.
Signal to Noise Ratio >100 dB unweighted, referred to 100 watts.
Damping Factor 150 at up to 1 kHz into 8Ω. 50 at up to 10 kHz into 8Ω.
Rise Time 2.5 µS from 10% to 90% with a 60 V p-p 10 kHz square wave.
Slew Rate 30 V/µS with a 60 V p-p 10 kHz square wave.
Semiconductors 8 power MOSFETs: two pairs of complementary Hitachi 2SK134 and 2SJ49 lateral MOSFETs per channel. 26 transistors. 24 diodes. 4 Zener diodes. 1 bridge rectifier.
Power Input 120 VAC, 60 Hz (US version). Rated 370 VA maximum, marked 600 W maximum. Actual power consumption is much less.
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